WO2024095773A1 - Procédé de fabrication de produit coulé, dispositif de fabrication de produit coulé et moule - Google Patents

Procédé de fabrication de produit coulé, dispositif de fabrication de produit coulé et moule Download PDF

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Publication number
WO2024095773A1
WO2024095773A1 PCT/JP2023/037706 JP2023037706W WO2024095773A1 WO 2024095773 A1 WO2024095773 A1 WO 2024095773A1 JP 2023037706 W JP2023037706 W JP 2023037706W WO 2024095773 A1 WO2024095773 A1 WO 2024095773A1
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WIPO (PCT)
Prior art keywords
mold
pipe
straight portion
straight
incompressible fluid
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PCT/JP2023/037706
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English (en)
Japanese (ja)
Inventor
貴義 三室
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株式会社エフ・シー・シー
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Publication date
Application filed by 株式会社エフ・シー・シー filed Critical 株式会社エフ・シー・シー
Publication of WO2024095773A1 publication Critical patent/WO2024095773A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product

Definitions

  • the present invention relates to a method for manufacturing a casting, an apparatus for manufacturing a casting, and a mold.
  • a method called "cast-in insert” has been used for the manufacture of castings.
  • a casting manufactured by cast-in insert has a pipe that is manufactured separately from the casting of the casting itself. More specifically, in cast-in insert, a pipe is placed in advance in a metal mold for manufacturing the casting, and then molten metal made of molten metal material such as aluminum alloy is poured into the metal mold. This produces a casting with a pipe built in.
  • a casting with a pipe built in is a drive motor case.
  • Patent Document 1 discloses a method for manufacturing a casting in which a smart core, a tubular pipe filled with a filler material, is inserted into a mold in which a cavity is formed, molten metal is poured into the cavity, and then the filler material in the smart core is removed.
  • Patent Document 1 the filler material inside the tubular pipe is removed after the casting incorporating the smart core is removed from the mold.
  • the casting is removed from the mold, it is necessary to set the casting in a device for removing the filler material. This may result in a longer manufacturing time for the casting.
  • the present invention has been made in consideration of these points, and its purpose is to provide a method and apparatus for manufacturing a casting that can efficiently remove the incompressible fluid that fills a pipe incorporated in the casting.
  • the manufacturing method of the casting according to the present invention is a method for manufacturing a casting comprising a pipe having an injection port through which an incompressible fluid is injected, an outlet port through which the incompressible fluid is discharged, and a flow path through which the incompressible fluid flows, the pipe being located between the injection port and the outlet port, and a metal material encasing the pipe, the method comprising the steps of: preparing a mold including a fixed mold and a movable mold that can approach or move away from the fixed mold; arranging the pipe within the mold so that the injection port and the outlet are exposed to the outside from the mold; The process includes a mold clamping step of bringing the movable mold close to the fixed mold and closing the mold, a first filling step of injecting a non-compressible fluid from the injection port to fill the flow path with the non-compressible fluid, a second filling step of filling a molding space formed by the movable mold and the fixed mold with molten metal material, a discharge step of
  • an incompressible fluid is injected from an injection port while the pipe is placed in the mold, and after the molding space is filled with molten metal material, the incompressible fluid is discharged from an outlet while the pipe is placed in the mold.
  • the incompressible fluid that filled the flow path of the pipe is discharged from the outlet while the casting is in the mold, so there is no need to set the casting in a device for removing the incompressible fluid, and the manufacturing time of the casting can be shortened.
  • the incompressible fluid is discharged when the casting is removed from the mold, so there is no risk of the incompressible fluid splashing out.
  • the casting manufacturing apparatus of the present invention is a mold including a fixed mold and a movable mold that can approach or move away from the fixed mold, and is configured so that the injection port and the discharge port are exposed to the outside when a pipe having a first straight section having an injection port through which an incompressible fluid is injected, a second straight section having an outlet port through which the incompressible fluid is discharged, and a main body section located between the first straight section and the second straight section and having a flow path through which the incompressible fluid flows is placed in a molding space formed by the movable mold and the fixed mold, and a fluid transport device that is attached to the injection port and the discharge port of the pipe placed in the molding space, and that injects the incompressible fluid from the injection port and discharges the incompressible fluid from the discharge port.
  • a fluid transport device attached to the injection port and discharge port of a pipe arranged in the molding space injects an incompressible fluid from the injection port and discharges the incompressible fluid from the discharge port.
  • the incompressible fluid can be discharged from the discharge port of the pipe while the pipe is arranged in the mold, so there is no need to set the casting in a device for removing the incompressible fluid, and the manufacturing time of the casting can be shortened.
  • the incompressible fluid can be injected and discharged with high precision.
  • the mold of the present invention includes a fixed mold and a movable mold that can approach or move away from the fixed mold, and is configured so that a pipe having a first straight section having an inlet through which a non-compressible fluid is injected, a second straight section having an outlet through which the non-compressible fluid is discharged and parallel to the first straight section, and a main section located between the first straight section and the second straight section and having a flow path through which the non-compressible fluid flows is placed in a molding space formed by the movable mold and the fixed mold, and the fixed mold or the movable mold includes a first holding section into which the first straight section is inserted and which holds the first straight section, and a second holding section into which the second straight section is inserted and which holds the second straight section, and is configured so that when the first straight section of the pipe is held by the first holding section and the second straight section is held by the second holding section, the main section of the pipe does not come into contact with the fixed mold or the movable mold.
  • the mold according to the present invention is configured so that when the first straight portion of the pipe is held by the first holding portion and the second straight portion is held by the second holding portion, the body of the pipe does not come into contact with the fixed and movable dies. Therefore, when the molding space is filled with molten metal material, the metal material casts around the entire body of the pipe. In other words, the body of the pipe is not exposed to the outside in the manufactured casting.
  • the present invention provides a method and apparatus for manufacturing a casting that can efficiently remove the incompressible fluid that is filled in a pipe incorporated in the casting.
  • FIG. 1 is a schematic diagram of a casting manufacturing apparatus according to one embodiment.
  • FIG. 2 is a perspective view illustrating a pipe according to an embodiment of the present invention.
  • FIG. 3 is a perspective view illustrating a casting according to one embodiment.
  • FIG. 4 is a perspective view of a fixed type according to one embodiment.
  • FIG. 5 is a side view showing a state in which a pipe is held in a fixed mold according to one embodiment.
  • FIG. 6 is a flow chart illustrating a method for manufacturing a casting according to one embodiment.
  • FIG. 7 is a cross-sectional view showing a state in which the mold according to the embodiment is closed.
  • FIG. 8 is a side view showing a fluid transport device connected to a fixedly held pipe according to one embodiment.
  • FIG. 9 is a cross-sectional view showing a state in which a casting is produced in the mold according to one embodiment.
  • FIG. 10 is a side view showing a schematic diagram of a state in which the movable mold is separated from the fixed mold and the mold is opened according to an embodiment.
  • FIG. 1 is a schematic diagram of a casting manufacturing apparatus 10 according to this embodiment.
  • the casting manufacturing apparatus 10 is an apparatus that uses a die casting method, i.e., a high-speed, high-pressure casting method.
  • high pressure is, for example, 20 MPa to 100 MPa.
  • the casting manufacturing apparatus 10 is an apparatus that manufactures a casting 140 (see FIG. 3) that includes a pipe 100 (see FIG. 2) and a metal material 120 that encases the pipe 100.
  • the casting manufacturing apparatus 10 includes a mold 20 and a fluid transport device 80.
  • the pipe 100 is made of a metal (e.g., an aluminum alloy) with high thermal conductivity. As shown in FIG. 2, the pipe 100 has a first straight portion 102, a second straight portion 106 parallel to the first straight portion 102, and a main body portion 110 located between the first straight portion 102 and the second straight portion 106.
  • the first straight portion 102, the second straight portion 106, and the main body portion 110 are integrally formed.
  • the first straight portion 102 has an inlet 103 through which an incompressible fluid is injected, and a first flow path 104 that communicates with the inlet 103 and through which the incompressible fluid flows.
  • the second straight portion 106 has an outlet 107 through which the incompressible fluid is discharged, and a second flow path 108 that communicates with the outlet 107 and through which the incompressible fluid flows.
  • the first straight portion 102 and the second straight portion 106 have the same length from the main body portion 110, but may be different.
  • the first straight portion 102 and the second straight portion 106 extend in the same direction from the main body portion 110. That is, the inlet 103 and the outlet 107 open in the same direction.
  • the main body portion 110 has a third flow path 111 through which the incompressible fluid flows.
  • the third flow path 111 communicates with the first flow path 104 and the second flow path 108. That is, the third flow path 111 communicates with the inlet 103 and the outlet 107.
  • the third flow path 111 is an example of a flow path.
  • the main body portion 110 is formed in a spiral shape. Note that the shape of the main body portion 110 is not limited to a spiral shape.
  • the casting 140 includes a pipe 100 and a metal material 120 that encases the pipe 100.
  • the pipe 100 and the metal material 120 are integrated.
  • a part of the first straight portion 102, a part of the second straight portion 106, and the entire main body portion 110 of the pipe 100 are covered with the metal material 120.
  • a part of the first straight portion 102 including the inlet 103 and a part of the second straight portion 106 including the outlet 107 are exposed to the outside from the metal material 120.
  • the metal material 120 is, for example, the same metal as the pipe 100. Note that the metal material 120 and the pipe 100 may be different metals.
  • the casting 140 can be used, for example, as a case for a drive motor.
  • the mold 20 includes a fixed mold 30 and a movable mold 40 that can approach or move away from the fixed mold 30.
  • the fixed mold 30 has a cavity portion 31 (see FIG. 7) that is used to form a part of the casting 140.
  • the fixed mold 30 has a recess 30M that is recessed from the outer surface 30F (the surface opposite the movable mold 40) toward the cavity portion 31.
  • the movable mold 40 has a core portion 41 (see FIG. 7) that is used to form another part of the casting 140.
  • a molding space 50 (see FIG. 7) is formed by the movable mold 40 and the fixed mold 30.
  • a pipe 100 is placed in the molding space 50.
  • the molding space 50 is partitioned by the cavity portion 31 and the core portion 41.
  • the fixed mold 30 has a first holding portion 32 that holds the first straight portion 102 of the pipe 100, and a second holding portion 36 that holds the second straight portion 106 of the pipe 100.
  • the first holding portion 32 and the second holding portion 36 are through holes formed in the fixed mold 30.
  • the first holding portion 32 and the second holding portion 36 are in communication with the recess 30M.
  • the first straight portion 102 is inserted into the first holding portion 32.
  • the inner diameter of the first holding portion 32 and the outer diameter of the first straight portion 102 are set so that when the first straight portion 102 is inserted into the first holding portion 32, the first straight portion 102 is held by the first holding portion 32 and no rattle occurs between the first straight portion 102 and the first holding portion 32.
  • the inner diameter of the first holding portion 32 and the outer diameter of the first straight portion 102 are approximately the same diameter.
  • the longitudinal length of the first holding portion 32 is set so that when the first straight portion 102 is held by the first holding portion 32, the first straight portion 102 is exposed to the outside from the mold 20 (here, the fixed mold 30).
  • the longitudinal length of the first holding portion 32 is shorter than the longitudinal length of the first straight portion 102.
  • first straight portion 102 When the first straight portion 102 is inserted into the first holding portion 32 (i.e., when the pipe 100 is placed in the molding space 50), a part of the first straight portion 102 is exposed to the outside of the mold 20 (here, the fixed mold 30). That is, the injection port 103 is exposed to the outside of the fixed mold 30.
  • the injection port 103 is located within the recess 30M of the fixed mold 30. Note that the injection port 103 may be located outside the recess 30M.
  • the second straight portion 106 is inserted into the second holding portion 36.
  • the inner diameter of the second holding portion 36 and the outer diameter of the second straight portion 106 are set so that when the second straight portion 106 is inserted into the second holding portion 36, the second straight portion 106 is held by the second holding portion 36 and no rattling occurs between the second straight portion 106 and the second holding portion 36.
  • the inner diameter of the second holding portion 36 and the outer diameter of the second straight portion 106 are approximately the same diameter.
  • the longitudinal length of the second holding portion 36 is set so that when the second straight portion 106 is held by the second holding portion 36, the second straight portion 106 is exposed to the outside from the mold 20 (here, the fixed mold 30).
  • the longitudinal length of the second holding portion 36 is shorter than the longitudinal length of the second straight portion 106.
  • the second straight portion 106 is inserted into the second holding portion 36 (i.e., when the pipe 100 is placed in the molding space 50)
  • a part of the second straight portion 106 is exposed to the outside of the mold 20 (here, the fixed mold 30). That is, the discharge port 107 is exposed to the outside of the fixed mold 30.
  • the discharge port 107 is located in the recess 30M of the fixed mold 30.
  • the discharge port 107 may be located outside the recess 30M.
  • the first straight portion 102 and the second straight portion 106 may not be exposed to the outside from the mold 20 (here, the fixed mold 30).
  • a non-compressible fluid may be injected into the injection port 103 of the pipe 100 through the first holding portion 32, or a non-compressible fluid may be discharged from the discharge port 107 of the pipe 100 through the second holding portion 36.
  • the pipe 100 is held by the fixed mold 30 with the first straight portion 102 of the pipe 100 held by the first holding portion 32 and the second straight portion 106 held by the second holding portion 36. That is, the pipe 100 is held by the fixed mold 30 only by the first holding portion 32 and the second holding portion 36. With the first straight portion 102 of the pipe 100 held by the first holding portion 32 and the second straight portion 106 held by the second holding portion 36, the body portion 110 of the pipe 100 is configured not to come into contact with the fixed mold 30 and the movable mold 40 (see FIG. 7). In other words, a gap is provided between the fixed mold 30 and the movable mold 40 over the entire body portion 110 of the pipe 100. That is, the pipe 100 is held by the fixed mold 30 with the body portion 110 suspended in the air.
  • the first holding part 32 and the second holding part 36 are provided on the fixed mold 30, but they may also be provided on the movable mold 40.
  • the fixed mold 30 has a first pressing portion 38 that presses the first straight portion 102 of the pipe 100 from the side, and a second pressing portion 39 that presses the second straight portion 106 of the pipe 100 from the side.
  • the first pressing portion 38 and the second pressing portion 39 are, for example, rod-shaped members.
  • the first pressing portion 38 is configured to be accommodated in a first accommodating hole 32H formed in the fixed mold 30 and to move within the first accommodating hole 32H.
  • the first accommodating hole 32H extends in a direction intersecting (for example, a direction perpendicular to) the first holding portion 32.
  • the second pressing portion 39 is configured to be accommodated in a second accommodating hole 36H formed in the fixed mold 30 and to move within the second accommodating hole 36H.
  • the second accommodating hole 36H extends in a direction intersecting (for example, a direction perpendicular to) the second holding portion 36.
  • the first pressing portion 38 and the second pressing portion 39 are configured to press the first straight portion 102 and the second straight portion 106 from the side, respectively, after the pipe 100 is filled with the incompressible fluid.
  • the first pressing portion 38 and the second pressing portion 39 may be configured to press the first straight portion 102 and the second straight portion 106 from the side, respectively, before the pipe 100 is filled with the incompressible fluid.
  • the movement of the first pressing portion 38 and the second pressing portion 39 is controlled, for example, by a solenoid or the like (not shown).
  • the first pressing portion 38 presses the first straight portion 102 from the side, thereby fixing the first straight portion 102 at a predetermined position.
  • the second pressing portion 39 presses the second straight portion 106 from the side, thereby fixing the second straight portion 106 at a predetermined position.
  • the first pressing portion 38 and the second pressing portion 39 are provided on the fixed mold 30, but if the first holding portion 32 and the second holding portion 36 are provided on the movable mold 40, they may be provided on the movable mold 40. Also, at least one of the first pressing portion 38 and the second pressing portion 39 may be provided.
  • the mold 20 has a slide portion 35.
  • the slide portion 35 is a part of the fixed mold 30.
  • the slide portion 35 is a member that is inserted into the spiral portion of the main body portion 110 of the pipe 100 arranged in the molding space 50.
  • the slide portion 35 has a cylindrical shape.
  • the slide portion 35 does not contact the main body portion 110.
  • the slide portion 35 is configured to be movable relative to the pipe 100.
  • the fluid conveying device 80 is a device separate from the mold 20.
  • the fluid conveying device 80 is a device that injects a non-compressible fluid into the inlet 103 of the pipe 100.
  • the fluid conveying device 80 is a device that discharges and recovers the non-compressible fluid from the outlet 107 of the pipe 100.
  • the non-compressible fluid is not particularly limited as long as it is filled inside the pipe 100 and suppresses deformation of the pipe 100 even when a load is applied to the pipe 100.
  • the non-compressible fluid is, for example, oil (e.g., hydraulic oil).
  • the fluid conveying device 80 is attached to the inlet 103 and outlet 107 of the pipe 100 arranged in the molding space 50 of the mold 20 (see FIG. 7).
  • the fluid conveying device 80 includes a conveying section 82 that sends out the non-compressible fluid and a recovery section 84 that recovers the non-compressible fluid.
  • the conveying section 82 and the recovery section 84 are, for example, hoses having pressure resistance and heat resistance.
  • the conveying unit 82 is attached to the first straight section 102 of the pipe 100.
  • the conveying unit 82 is connected to the inlet 103 of the first straight section 102.
  • the recovery unit 84 is attached to the second straight section 106 of the pipe 100.
  • the recovery unit 84 is connected to the outlet 107 of the second straight section 106.
  • the method of attaching the conveying unit 82 to the first straight section 102 and the method of attaching the recovery unit 84 to the second straight section 106 are not particularly limited. For example, they may be detachable using a coupler (one-touch joint) or the like.
  • FIG. 6 is a flowchart showing the method for manufacturing the casting 140 (hereinafter simply referred to as the manufacturing method).
  • the manufacturing method includes a preparation step (step S10), a placement step (step S20), a mold clamping step (step S30), a first filling step (step S40), a second filling step (step S50), a discharge step (step S60), and a removal step (step S70).
  • a casting manufacturing device 10 including a mold 20 and a fluid transport device 80 is used to manufacture the casting 140 (see FIG. 3).
  • the direction in which the movable mold 40 moves relative to the fixed mold 30 is the mold movement direction P
  • the direction in which the movable mold 40 approaches the fixed mold 30 is P1
  • the direction in which the movable mold 40 moves away from the fixed mold 30 is P2.
  • a mold 20 is prepared that includes a fixed mold 30 and a movable mold 40 that can move toward or away from the fixed mold 30.
  • the pipe 100 is placed in the mold 20. More specifically, as shown in FIG. 5, the first straight portion 102 of the pipe 100 is inserted into the first holding portion 32 of the fixed mold 30 and held by the first holding portion 32, and the second straight portion 106 of the pipe 100 is inserted into the second holding portion 36 of the fixed mold 30 and held by the second holding portion 36. This exposes the injection port 103 of the first straight portion 102 and the discharge port 107 of the second straight portion 106 to the outside of the mold 20 (here, the fixed mold 30) (see FIG. 1).
  • step S30 the movable mold 40 is brought close to the fixed mold 30 to close the mold 20. That is, the movable mold 40 is moved in the direction of the arrow P1 in FIG. 7 to close the fixed mold 30 with the movable mold 40. As a result, the molding space 50 in which the casting 140 is molded is partitioned by the cavity portion 31 of the fixed mold 30 and the core portion 41 of the movable mold 40. Before the movable mold 40 is brought close to the fixed mold 30, the slide portion 35 (see also FIG. 1) of the mold 20 is moved to be positioned inside the main body portion 110 of the pipe 100.
  • the main body portion 110 of the pipe 100 is not in contact with the fixed mold 30 and the movable mold 40. Only the first straight portion 102 and the second straight portion 106 of the pipe 100 are in contact with the mold 20 (here, the fixed mold 30).
  • a non-compressible fluid e.g., oil
  • the conveying section 82 of the fluid conveying device 80 is attached to the first straight section 102 of the pipe 100 by a one-touch joint or the like
  • the recovery section 84 of the fluid conveying device 80 is attached to the second straight section 106 of the pipe 100 by a one-touch joint or the like.
  • the non-compressible fluid is filled from the fluid conveying device 80 through the inlet 103 into the first flow path 104, the second flow path 108, and the third flow path 111 of the pipe 100.
  • the fluid conveying device 80 may be removed from the pipe 100 or may remain attached.
  • the first pressing unit 38 presses the first straight portion 102 of the pipe 100 from the side
  • the second pressing unit 39 presses the second straight portion 106 of the pipe 100 from the side, thereby fixing the first straight portion 102 and the second straight portion 106 in a predetermined position.
  • the first filling step (step S40) is performed after the mold clamping step (step S30), but the mold clamping step (step S30) may be performed after the first filling step (step S40).
  • the molding space 50 formed by the movable mold 40 and the fixed mold 30 is filled with molten metal material.
  • the metal material is an aluminum alloy.
  • the molten metal material (molten metal) is filled into the molding space 50 through an injection port (not shown) provided in the fixed mold 30.
  • the molten metal material (molten metal) is then cooled and solidified in the mold 20.
  • cooling refers to cooling to solidify the molten metal.
  • the incompressible fluid filled in the third flow path 111 of the main body 110 is discharged from the outlet 107 of the second straight portion 106 of the casting 140. More specifically, as shown in FIG. 9, the fluid conveying device 80 is driven to discharge the incompressible fluid from the outlet 107 of the second straight portion 106 of the pipe 100 toward the fluid conveying device 80. The incompressible fluid discharged from the outlet 107 is collected in the fluid conveying device 80. Then, after the incompressible fluid is discharged from the pipe 100, the fluid conveying device 80 is removed from the pipe 100.
  • the discharge step (step S60) is performed with the casting 140 placed in the mold 20.
  • the discharge step (step S60) may be performed after the molten metal in the mold 20 has completely solidified, or may be performed while the molten metal is solidifying. That is, the discharge of the non-compressible fluid may begin after the curing time (the time required for cooling to solidify the molten metal) has elapsed, or the discharge of the non-compressible fluid may begin before the curing time has elapsed.
  • step S70 the movable die 40 is separated from the fixed die 30 to open the metal mold 20. That is, the movable die 40 is moved in the direction of arrow P2 in FIG. 10 to separate the movable die 40 from the fixed die 30. At this time, the molded casting 140 is fixed to the movable die 40. Then, a casting pin (not shown) is pressed against the casting 140 fixed to the movable die 40, and the casting 140 from which the incompressible fluid has been discharged from the third flow path 111 of the main body 110 of the pipe 100 is removed from the movable die 40. In this way, the casting 140 including the pipe 100 and the metal material 120 that casts around the pipe 100 is molded.
  • the incompressible fluid is injected from the injection port 103 while the pipe 100 is placed in the mold 20, and after the molding space 50 is filled with the molten metal material, the incompressible fluid is discharged from the discharge port 107 while the pipe 100 is placed in the mold 20.
  • the incompressible fluid filled in the third flow path 111 of the main body 110 of the pipe 100 is discharged from the discharge port 107 while the casting 140 is present in the mold 20, there is no need to set the casting 140 in a device for removing the incompressible fluid, and the manufacturing time of the casting 140 can be shortened.
  • the incompressible fluid can be discharged from the discharge port 107 of the pipe 100 while the pipe 100 is arranged in the mold 20, there is no need to set the casting 140 in a device for removing the incompressible fluid, and the manufacturing time of the casting 140 can be shortened.
  • the incompressible fluid can be injected and discharged with high precision.
  • the body portion 110 of the pipe 100 is configured not to come into contact with the fixed mold 30 and the movable mold 40. Therefore, when the molding space 50 is filled with molten metal material, the metal material casts around the entire body portion 110 of the pipe 100. In other words, in the manufactured casting 140, the body portion 110 of the pipe 100 is not exposed to the outside.
  • the lengths of the first holding portion 32 and the second holding portion 36 are set so that the first straight portion 102 and the second straight portion 106 of the pipe 100 are exposed to the outside from the mold 20 when the first straight portion 102 is held by the first holding portion 32 and the second straight portion 106 is held by the second holding portion 36.
  • the fluid transport device 80 can be easily attached to the first straight portion 102 and the second straight portion 106 exposed to the outside from the mold 20.
  • the fixed mold 30 having the first holding portion 32 and the second holding portion 36 has a first pressing portion 38 that presses the first straight portion 102 from the side and a second pressing portion 39 that presses the second straight portion 106 from the side.
  • the first straight portion 102 and/or the second straight portion 106 of the pipe 100 can be fixed in a predetermined position.
  • Casting manufacturing apparatus 20 Mold 30 Fixed mold 32 First holding section 36 Second holding section 38 First pressing section 39 Second pressing section 40 Movable mold 50 Molding space 80 Fluid transport device 82 Transport section 84 Recovery section 100 Pipe 102 First straight section 103 Inlet 104 First flow path 106 Second straight section 107 Outlet 108 Second flow path 110 Main body section 111 Third flow path (flow path) 120 Metallic materials 140 Castings

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  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication qui comprend : une étape de préparation pour préparer un moule 20 comprenant un moule fixe 30 et un moule mobile 40 ; une étape d'agencement pour agencer un tuyau 100 dans le moule 20 de telle sorte qu'un orifice d'injection 103 et un orifice d'évacuation 107 sont exposés à l'extérieur du moule 20 ; une étape de serrage de moule pour fermer le moule 20 ; une première étape de remplissage pour injecter un fluide incompressible à partir de l'ouverture d'injection 103 pour remplir l'intérieur d'un troisième passage d'écoulement 111 d'une partie de corps principal 110 du tuyau 100 avec le fluide incompressible ; une deuxième étape de remplissage pour remplir un espace de moulage 50 formé par le moule mobile 40 et le moule fixe 30 avec un matériau métallique fondu ; une étape d'évacuation pour évacuer le fluide incompressible remplissant l'intérieur du troisième passage d'écoulement 111 à partir de l'orifice d'évacuation 107 ; et une étape d'extraction pour séparer le moule mobile 40 du moule fixe 30 pour ouvrir le moule 20, et extraire un produit coulé 140 dans laquelle le fluide incompressible a été évacué à partir du troisième passage d'écoulement 111.
PCT/JP2023/037706 2022-10-31 2023-10-18 Procédé de fabrication de produit coulé, dispositif de fabrication de produit coulé et moule WO2024095773A1 (fr)

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JP2022174494A JP7467568B1 (ja) 2022-10-31 2022-10-31 鋳造品の製造方法および鋳造品製造装置並びに金型
JP2022-174494 2022-10-31

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Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS6037158Y2 (ja) * 1980-03-24 1985-11-05 株式会社日軽技研 中空部材の鋳ぐるみ鋳造装置
JP2004306061A (ja) * 2003-04-04 2004-11-04 Asahi Tec Corp 中空部材の鋳ぐるみ方法
JP2019025514A (ja) * 2017-07-28 2019-02-21 カルソニックカンセイ株式会社 鋳型及び鋳造部品の製造方法

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JP2019025514A (ja) * 2017-07-28 2019-02-21 カルソニックカンセイ株式会社 鋳型及び鋳造部品の製造方法

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